<?php

namespace Common\Lib\Util;

class PathTree {

	/**
	 * 生成树型结构所需要的2维数组
	 * @var array
	 */
	public $arr = array();

	/**
	 * 生成树型结构所需修饰符号，可以换成图片
	 * @var array
	 */
	public $icon = array('│', '├', '└');
	public $nbsp = "&nbsp;";

	public function init($arr = array()) {
		$this->arr = $arr;
		return is_array($arr);
	}

	public function get_tree() {
		$array = $this->arr;
		foreach ($array as $key => $r) {
			$level = count(explode("-", $r["path"])) - 1;
			$array[$key]["level"] = $level;
			$array[$key]["spacer"] = $this->get_spacer($level - 1);
		}
		return $array;
	}

	public function get_spacer($count) {
		$spacer = "";
		for ($i = 0; $i < $count; $i++) {
			$spacer.=$this->nbsp;
		}
		return $spacer;
	}

}
